package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
@Slf4j
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> addcaiping(@RequestBody Category category) {
        log.info("category:{}", category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> selectAll(Integer page, Integer pageSize) {
        log.info("page = {},pageSize = {}", page, pageSize);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //执行查询
        categoryService.page(pageInfo);
        return R.success(pageInfo);
    }

    /**
     * 根据ID删除分类
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> deleteCategory(Long id) {
        log.info("id:{}", id);
//        categoryService.removeById(id);
        categoryService.remove(id);

        return R.success("删除分类成功");
    }

    /**
     * 修改分类
     * @param category
     * @return
     */
    @PutMapping
    public R<String> updateCategory(@RequestBody Category category) {
        categoryService.updateById(category);
        return R.success("修改分类成功");
    }

    /**
     * 根据条件查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category) {
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //可以将实体类的全部元素都做这样的判断，但是现在没必要；扩展性强
        queryWrapper.eq(category.getType() != null, Category::getType, category.getType());
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }
}